Last evening, just before the Summerset High Senior Class closed its
lot at 9:00 p.m., five families bought their Christmas trees, loading
them into their cars as a light snow transformed the tree lot into a
Winter Wonderland. Will you be as excited as the children who helped
pick out the trees when you solve this Challenger Christmas Logic
Puzzle of what variety of tree each family selected, how much their
tree cost, and in what order 1st-5th they bought the final five
Christmas trees of the night?

Two of the trees were $5 apart in price; all other prices differed
by more than $5.

The Ball family didn't buy the Fraser fir.

The Starrs bought their tree immediately before the family who
selected the Douglas Fir did; the Douglas Fir cost $25 more than
the tree the Starrs took home.

The family who bought the white pine, who aren't the Lights, paid
$60 for their Christmas tree.

The tree the Holly family chose cost twice as much as the blue
spruce, which wasn't the last tree sold.

The Douglas fir was sold before the Ball family bought their tree.

The Lights paid for their Christmas tree immediately after the
family who selected the Fraser fir; the cost of the Lights'
tree was $50 less than the cost of the Fraser fir.

One family chose the Scotch pine earlier in the evening than the
Garlands bought their tree; the Scotch pine cost $30 less than
the Garlands' tree did.